On the minimal area of quadrangles circumscribed about planar convex bodies

Fuente: arXiv
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Main Authors: Fodor, Ferenc, Grundbacher, Florian
Format: Preprint
Published: 2025
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author Fodor, Ferenc
Grundbacher, Florian
author_facet Fodor, Ferenc
Grundbacher, Florian
contents We show that every planar convex body is contained in a quadrangle whose area is less than $(1 - 2.6 \cdot 10^{-7}) \sqrt{2}$ times the area of the original convex body, improving the best known upper bound by W. Kuperberg.
format Preprint
id arxiv_https___arxiv_org_abs_2506_05185
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the minimal area of quadrangles circumscribed about planar convex bodies
Fodor, Ferenc
Grundbacher, Florian
Metric Geometry
52A27 (Primary) 52A10, 52A40 (Secondary)
We show that every planar convex body is contained in a quadrangle whose area is less than $(1 - 2.6 \cdot 10^{-7}) \sqrt{2}$ times the area of the original convex body, improving the best known upper bound by W. Kuperberg.
title On the minimal area of quadrangles circumscribed about planar convex bodies
topic Metric Geometry
52A27 (Primary) 52A10, 52A40 (Secondary)
url https://arxiv.org/abs/2506.05185